The Journal

PCOS and PMOS

PCOS and PMOS: where to start

What to do first when PCOS feels overwhelming

Dr Amy Shacaluga·11 September 20267 min read

If you have PCOS, or you think you might, take a breath. You are not failing. You are not “just a weight problem.” And you do not need a perfect protocol before you can start.

PCOS is common. It is also confusing, because it does not look the same in every woman. One person is wrestling with cycles and skin. Another is told her blood sugar is drifting. Someone else is exhausted, anxious, or sleeping badly, and only later hears the word PCOS.

It helps to think of it as a cardiometabolic chameleon: in each woman it presents differently, which is exactly why it needs an individual lens every time. That is Precision Health in practice, not a slogan. Every woman’s journey and needs are different, so prioritise what speaks to you.

This note is a starting map. It is educational information only, not personal medical advice, and not for emergencies. If you need urgent care, call 999 or NHS 111.

The “just lose weight” myth

Many women with PCOS leave a consultation hearing little more than “lose weight.” Sometimes weight change helps metabolic and cycle markers. Sometimes it does not feel possible, fair, or central to what hurts most. Weight is one health signal among many. It is not your whole story, and it is not a moral score.[1]

A kinder first question is: what is driving your pattern right now? Cycles? Androgens (the hormones that can drive acne, unwanted hair, or thinning hair)? Blood sugar and lipids? Blood pressure? Mood and sleep? Inflammation and energy?

Inflammation sits in that picture for a lot of women. Ultra-processed food patterns (the packaged, sweetened, emulsified foods that crowd many modern diets) tend to nudge metabolism and inflammation in the wrong direction for anyone, and they can feel especially unhelpful when insulin sensitivity is already under pressure. This is not about a branded “PCOS diet” or cutting out whole food groups forever. It is about gently shifting the everyday plate toward food that still feels like your life: more whole or minimally processed choices, enough protein and fibre, and less of the ultra-processed default where you can.[1]

Evidence here is still evolving. Guidelines are clearer that no single diet composition wins for every PCOS outcome, and that a sustainable, non-extreme pattern beats a rigid wellness script.[1] Where the science is incomplete, honesty beats certainty.

What the label actually means

In plain terms, PCOS is a hormone and metabolism pattern that can affect periods, androgens, ovaries (on scan or via a blood marker called AMH in adults), and longer-term cardiometabolic risk. About one in ten women of reproductive age meet widely used criteria.[1]

Adults are usually diagnosed when at least two of three features are present (after other causes are ruled out): higher androgen signs or levels; irregular or absent ovulation; and polycystic ovarian appearance on ultrasound or a raised AMH. If cycles are already irregular and androgens are high, you often do not need a scan or AMH to confirm it.[1]

Teenagers are handled more carefully. Scans and AMH are not recommended to make the diagnosis at that age, because normal developing ovaries can look “polycystic” and AMH is hard to interpret. Incomplete features may mean “increased risk,” with reassessment later.[1]

So if your experience does not match a friend’s PCOS TikTok, that does not make either of you wrong. Different phenotype, different starting point.

A note on names: PCOS and PMOS

You may start hearing a new label in UK conversations: PMOS, short for Polyendocrine Metabolic Ovarian Syndrome. It is the working title for national guidance NICE is developing, expected later in 2026.[4] The aim is to reflect what many clinicians already see: this is not only an ovary story. Hormones, metabolism, and longer-term heart and metabolic risk travel together, and they show up differently in each woman.

For now, PCOS is still the word most people know. Until final NICE guidance is published, the 2023 international guideline remains the solid teaching base.[1] Think of PMOS as a possible future name for a fuller picture, not as a reason to panic or re-diagnose yourself overnight. If the language shifts, the individual lens stays the same.

First useful checks (before another diet overhaul)

Before you escalate supplements, intense programmes, or Instagram protocols, it helps to know your baselines. At diagnosis, useful checks often include a proper sugar-handling test (a 75 g oral glucose tolerance test where possible), a cholesterol/lipid profile, blood pressure, and an honest look at mood.[1] These matter at any body size. Rechecking on a sensible timetable matters too.

If a full glucose tolerance test is not available, fasting glucose or HbA1c can still help, with a bit less precision.[1] Sleep apnoea symptoms and a difficult relationship with food are worth naming early, especially before any tough weight-focused plan.[1]

Some tests sound scientific but do not help much day to day. Routine insulin blood tests are a good example: they rarely change good care on their own.[1]

Lifestyle that fits a real life

Movement and food patterns are first-line for metabolic health in PCOS, including central adiposity and lipids, and they can improve how you feel even when the scales barely move.[1]

There is no crown-winning “PCOS diet” and no single best workout type for every hormone or fertility outcome.[1] Agree a realistic activity floor from where you are now (walking counts; strength work helps; perfection does not), and a way of eating you can keep. Adult activity guidance is a north star, not a stick: build toward it when life allows.[1]

If weight change is one of your goals, structured support can help some metabolic and cycle markers for some women, though results vary and quality of life or skin may not shift in lockstep.[2][3] A number like “5%” is a research signal, not a personal mandate.

Where medicines sit

Medicines can be necessary. They are not a failure of willpower, and lifestyle is not a purity test that replaces treatment when treatment is indicated. They belong inside a personalised plan.

Depending on what bothers you most, that conversation might include contraceptive pills for cycles or skin, metformin for metabolic support, or other options discussed carefully in clinic (including safety around pregnancy).[1] Detail belongs in a consultation, because the right choice depends on your phenotype, preferences, and risks.

Fertility care is a separate pathway when you need it. Many women with PCOS are not trying to conceive right now. They want clear cycles, steadier energy, kinder metabolic markers, and to feel like themselves again.[1]

A gentle place to begin

1. Name what matters most to you this season (cycles, skin, energy, mood, metabolic health, fertility, or a mix).
2. Get the useful baselines done.
3. Soften the ultra-processed default and build movement you can repeat.
4. Decide together whether medicines have a role now.
5. Review, without shame, when life or your body changes.

PCOS course (interest / waitlist)

A longer, structured PCOS course is on the way: practical, individual-lens teaching you can work through in your own time. If you would like early access when it opens, join the interest list on the PCOS course waitlist. There is no pressure, and joining does not commit you to anything.

Consultations, if you want them, are face to face at The Richmond House Clinic in Penarth, or by video across the UK. The course waitlist is separate; you do not need to book a clinic appointment to join it.

References

1. Teede HJ, Tay CT, Laven JJE, et al. Recommendations from the 2023 international evidence-based guideline for the assessment and management of polycystic ovary syndrome. J Clin Endocrinol Metab. 2023;108(9):2447-2469.
2. Scragg J, Hobson A, Willis L, et al. Effect of weight loss interventions on the symptomatic burden and biomarkers of polycystic ovary syndrome: a systematic review of randomised controlled trials [abstract]. 2024.
3. Kim CH, Lee SH. Effectiveness of lifestyle modification in polycystic ovary syndrome patients with obesity: a systematic review and meta-analysis. Life (Basel). 2022;12(2):308.
4. National Institute for Health and Care Excellence. Polyendocrine Metabolic Ovarian Syndrome (PMOS). Guidance in development GID-NG10436. Expected publication 9 December 2026. nice.org.uk